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What command or program do I need to run in order to change the clock speed to a specific value I want? For example, I'm looking for something like <command name> 1.7, or something similar, to change the speed to a specified frequency in GHz or MHz. I would prefer a terminal application, but a desktop app would also suffice.

I am using Ubuntu 12.04 LTS.

marked as duplicate by slm, jasonwryan, rahmu, Bernhard, Anthon Oct 27 '13 at 1:16

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This can be done with the cpufreq-set command from cpufrequtils. Here is an example:

cpufreq-set -f 1700
  • Also cpupower frequency-info cpupower frequency-set -u -u 1200000. But this does not guarantee that temp will go down. For my old core 2 duo CPU setting max speed from 2GHz to 1.2GHz doesn't show any measurable change in power consumption (checked on power outlet). – akostadinov Jan 6 at 6:50

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